Using baking parchment and any kind of structure you like to support it, you can use bright sunlight to create the softest of shadows and the gentlest luminescence in silvery jewellery.

These are shot from above and I moved the little piece of polysterene reflector backwards and fowards until the highlight on the jewellery was just right, showing enough texture and keeping the shadow to a minimum to allow for the brightness of just-polished, brand new silver jewellery.